Russian energy minister says cooperation with OPEC intensifying

By Katya Golubkova and Shadia Nasralla VIENNA (Reuters) - A short-term cap in oil output would reduce market volatility, Russian Energy Minister Alexander Novak said on Monday at a meeting with OPEC Secretary-General Mohammed Barkindo, as both are looking at ways to stabilise prices. Russia is the world's largest oil producer but not a member of the Organization of the Petroleum Exporting Countries and its budget has been hit by low oil prices, the same as for many OPEC nations. Novak, in Vienna